blades

[paulada]

My husband has a Simplicity Regency mower. Right now, he is having trouble with the blades. They won't tighten up and stay tightened.

 

[mechanic mark]

Are threads stripped out in spindles? If not purchase 2 new grade 5 or grade 8 bolts same threads & length along with a small tube of blue Locktite to put a small amount on threads, torque bolts to 50 ft. lbs.